@charset "utf-8";  
*{margin: 0;padding: 0;
font-family: "宋体";
}
$w:100%;
$h:100%;
@mixin disp{
    display: flex;
    justify-content: space-around;
    align-items: center;
}
html,body{
    width: 100%;
    height: 100%;

    box-sizing: border-box;
}
.wrap{
    width: 100%;
    height: 100%;
}
header{
    width: 100%;
    line-height: 1.6rem;
    padding: 0.6rem 0;
    @include disp;
    background: #ffac2c;
    text-align: center;
    color: #fff;
    font-size: 1.6rem;
    >div:nth-child(1),>div:nth-child(3){
        width: 10%;
        img{
            width: 0.9rem;
        }
    }
    >div:nth-child(2){
        width: 80%;}
}
nav{
    width:100%;
    >div:nth-child(1){
        width: 100%;
        text-align: center;
        margin: 3.4rem 0;
        img{
            width: 15.65rem;
            height: 15.65rem;

        }
    }
    >div:nth-child(2),>div:nth-child(3){
        text-align: center;
        font-size: 0.8rem;
        margin-top: 0.8rem;
        span{
            a{
                text-decoration: none;
                color: lightseagreen;
            }
        }
    }
}
